Online analysis of Amazon's soils through reflectance spectroscopy and cloud computing can support policies and the sustainable development - Novais, Jean Jesus Macedo; Melo, Borges Marfrann Dias; Neves Junior, Afrânio Ferreira; Lima, Raimundo Humberto Cavalcante; Souza, Renato Epifânio de; Melo, Valdinar Ferreira; Amaral, Eufran Ferreira do; Tziolas, Nikolaos; Demattê, José Alexandre Melo (Journal of Environmental Management, 2025)